Ella simplifies (3b+4r) + (-2b-r) and says the result is b+5r. what error did ella make

Dimitri is solving the equation x^2 - 10x = 21. Which value must be added to both sides of the equation to make the left side a perfect-square trinomial? a. 0 b. 4 c. 25 d. 100

What is 6 5/11 rounded to the nearest whole number

Scientists determined that Antarctica's average winter temperature was - 34.44 Celsius. The difference between this temperature and Antarctica's highest recorded temperature was 49.44 degrees. What was Antarctica's highest recorded temperature?

The sum of twice a number and four is fourteen. find the number.

10 drops of a liquid o. o1 fluid onces. What is the volume of 100 drops

Write an equation in x to represent each statement below. Do not solve the equation. 1. when 4 is added to a certain number the result is the same as halving the number and adding 10. 2.

3. What is the solu3. What is the solution of system? Y = 5x + 4 Y = 5x - 3 A) No solutions B) (0,4) C) Infinitely many solutions D) (0,-3) tion of system? Y = 5x + 4 Y = 5x - 3 A) No solutions B) (0,4) C) Infinitely many solutions D) (0,-3)

True or false, when n is an negative integer, n-n=0

A cars velocity changes from 0 m/s to 30 m/s in 10 seconds

X²+-x+-4y+-2 (x²+-x+-y)